<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div>
        <img src="../assets/heima.png" alt="">
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!-- 页面主体区域 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside width="auto">
        <div class="toggle-button" @click="setCollapse()">|||</div>
        <!-- 侧边栏菜单区域 -->
        <el-menu class="el-menu-vertical-demo" background-color="#373d41" text-color="#fff" active-text-color="#409EFF" :collapse="isCollapse" router :default-active="$route.path" unique-opened >
          <template v-for="(item,index) in menulist">
            <el-submenu :index="index + ''" :key="item.id" v-if="item.children.length">
              <template v-slot:title>
                <i :class="iconsObj[item.id]"></i>
                <span>{{item.authName}}</span>
              </template>

              <el-menu-item :index="'/' + children.path" v-for="children in item.children" :key="children.id" >
                <template v-slot:title>
                  <i class="el-icon-menu"></i>
                  <span>{{children.authName}}</span>
                </template>
              </el-menu-item>

            </el-submenu>

            <el-menu-item :index="'/' + item.path" v-else :key="item.id" @click="saveNavState('/' + item.path)">
              <template v-slot:title>
                <i :class="iconsObj[item.id]"></i>
                <span>{{item.authName}}</span>
              </template>
            </el-menu-item>
          </template>
        </el-menu>
      </el-aside>
      <!-- 右侧内容主体 -->
      <el-main>
        <!-- 路由占位符 -->
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>

</template>

<script>
export default {
  data () {
    return {
      isCollapse: false,
      // 被激活的链接地址
      menulist: [
      ],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'

      }
    }
  },
  created () {
    this.getMenuList()
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    setCollapse () {
      this.isCollapse = !this.isCollapse
    },
    getMenuList () {
      this.$http.get('menus').then(res => {
        res = res.data
        if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.menulist = res.data
      }).catch(err => {
        this.$message.error(err || '错误')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
}
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}

.el-aside {
  background-color: #333744;
  .el-menu {
    border-right: none;
  }
}

.el-main {
  background-color: #eaedf1;
}

.iconfont {
  margin-right: 10px;
}

.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
